Improvement in wind-wheels



ida-ined 'tatrs @wat @dimite JAMES 0. HEYWORTH AND HERMAN E. FESSEL, 0F CHICAGO, ILLINOIS.

Letters Patent No. 108,593, dated October 25. 1870; antedated October 8, 1870.

The Schedule referred to in these Letters Patent and making part o! the same To lwhom it may concern Be it known that we, J AMES O. HEYWORTH and HERMAN E. FEssEL, of Chicago, in the county of Cook and State 'of Illinois, have invented a new and useful Improvement in Sails for Wind-IVheels; and we do declare that the following is a`trne and accurate description thereof', reference being had to the accompanying drawing and to the letters of reference marked thereon, and being a part of this specification.

t The drawing is a view in` perspective of our invenion.

This invention relates to an improvement in sails for wind-wheels, and consists in constructing them convex on one side and concave on the other, and hung loosely upon arms. passing from the shaft through them, at a point above the center; these are ballasted by weights at the bottom of the sails, which serve to keep them more or less in a perpendicular position, and to steady them under pressure of the wind, so as to expose a greater concave area to a slight wind, and

less area, by tilting of the sails, by the force of aV greater wind, thereby-preventing sudden jerks in the rotation of the arms.

In order to prevent the sails from heilig at any time so much tilted as to present too little surface to the wind, the shaft is provided with a second series of arms, projecting so that, when the sails tilt beyond a certain angle, they shall bear against the arms, by means of a projection at the bottom of the sails,- shown in the drawing, by the weights.

In the drawing- A is thc shaft, operated bythe wheel;

B, the arms, upon which the sails C are hung; and

D the weights, by which the sails are ballasted.

C1 shows the convex surface ofthe sail,

Ci, the concave; and

C2 C3 give side lviews of the sails.

E are the second series of arms, projecting from the shaft, so arranged as to prevent the sails from tilting beyond a certain angle by the weights I) bearing `against them.

It will be seen that these sails, hanging loosely on t-hc arms, adjust themselves to the forcel of the wind;

hanging above the center, they are not too easily turned from the perpendicular, and always offer a sutlicient surface to the wind to operate the machinery to whichA the wheel lis attached, and, with increase in the force of the wind, they turn 011 the arms, so as to oer less surface; and, when theforce is decreased, they fall again to their natural position, the weights attached steadyng them, so that the velocity of the rotating arms is maintained with great regularity and steadiness.

This invention' affords an economical and self-regulating power in every case where a wind-mill can, be pnt to use.

- \Vhat we claim as our invention, and desire to secure by Letters Patent, is-

1. A wind-wheel, ,having its sailsfC constructed convex on one side and concave on the other, hung upon arms B passing through them at a point above the center, and b'allasted by weights D, attached to the bottom of eac-h sail, substantially as and for the purposes set forth.

2. In combination with-tile above, the sccond'series of arms E, projecting from the shaft A,- arranged and operating as and for the purposes set forth.

, .'l. O. HEYWOR'IH.

lL E. FESSEL.

Witnesses:

GEO. O. Maxcnnsrnm SAML. B'. BELL. 

